GC is intrinsically bounded by the amount of memory available. GC is also about deciding what to evict albeit the heuristic used to determine that is based on c

GC is intrinsically bounded by the amount of memory available. GC is also about deciding what to evict albeit the heuristic used to determine that is based on current use rather than frequency of use. dotnet runtime GC is interesting for caching, because it has multiple generations for the GC. Each time there is a GC the survivors are moved to the next generation. Moving most used items to the next generation and looking in the later generations first when resolving could be pretty quick.